Oral irrigator



FIG. 1 is a perspective view of an oral irrigator showing our newdesign, the broken line showing is for illustrative purposes only andforms no part of the claimed design;

FIG. 2 is a front view of the oral irrigator of FIG. 1;

FIG. 3 is a rear view of the oral irrigator of FIG. 1;

FIG. 4 is a first side view of the oral irrigator of FIG. 1;

FIG. 5 is a second, opposite side view of the oral irrigator of FIG. 1;

FIG. 6 is a top view of the oral irrigator of FIG. 1; and,

FIG. 7 is a bottom view of the oral irrigator of FIG. 1.

The ornamental design for an oral irrigator, as shown and described.